Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Borisova, Ana"'
Autor:
Georgiev, Stefan, Konstantinova-Antova, Renada, Borisova, Ana, Kolev, Dimitar, Aurière, Michel, Petit, Pascal, Belcheva, Maya, Markov, Haralambi, Bogdanovski, Rumen, Spassov, Borislav, Zamanov, Radoslav, Tomov, Nikolay, Kurtenkov, Alexander
Publikováno v:
AIP Conference Proceedings, Volume 2075, Issue 1, id.090003
We present a spectral study of the single magnetically active K giant OP And in the period 1979 -- 2018, monitoring the variability of the activity indicator line H${\alpha}$. Original data obtained in the period 2015 -- 2018 with the echelle spectro
Externí odkaz:
http://arxiv.org/abs/2202.00925
Autor:
Pigulski, Andrzej, Kaminska, Monika K., Kaminski, Krzysztof, Paunzen, Ernst, Budaj, Jan, Pribulla, Theodor, Torres, Pascal J., Stateva, Ivanka, Niemczura, Ewa, Skarka, Marek, Alicavus, Filiz Kahraman, Sekeras, Matej, van der Swaelmen, Mathieu, Vanko, Martin, Vanzi, Leonardo, Borisova, Ana, Helminiak, Krzysztof, Alicavus, Fahri, Dimitrov, Wojciech, Tokarek, Jakub, Derekas, Aliz, Fernandez, Daniela, Garai, Zoltan, Napetova, Mirela, Komzik, Richard, Merle, Thibault, Ratajczak, Milena, Richardson, Noel D., Team, Ritter Observing, Kambe, Eiji, Ukita, Nobuharu
We report the discovery of two massive eccentric systems with BRITE data, $\tau$ Ori and $\tau$ Lib, showing heartbeat effects close to the periastron passage. $\tau$ Lib exhibits shallow eclipses that will soon vanish due to the apsidal motion in th
Externí odkaz:
http://arxiv.org/abs/1801.05985
Bayesian statistical methods of Gregory-Loredo and the Bretthorst generalization of the Lomb-Scargle periodogram have been applied for studying activity cycles of the early K-type subgiant star CF Oct. We have used a ~45 year long dataset derived fro
Externí odkaz:
http://arxiv.org/abs/1111.4155
Autor:
Johnson, John Asher, Winn, Joshua N., Rampazzi, Francesca, Barbieri, Cesare, Mito, Hiroyuki, Tarusawa, Ken-ichi, Tsvetkov, Milcho, Borisova, Ana, Meusinger, Helmut
The unusual pre-main-sequence binary star named KH 15D undergoes remarkably deep and long-lasting periodic eclipses. Some clues about the reason for these eclipses have come from the observed evolution of the system's light curve over the last centur
Externí odkaz:
http://arxiv.org/abs/astro-ph/0412498
Autor:
Borisova, Ana, Popov, Dimityr
Publikováno v:
In Sustainable Energy Technologies and Assessments December 2016 18:119-126
Autor:
Pigulski, Andrzej, Kaminska, Monika K., Kaminski, Krzysztof, Paunzen, Ernst, Budaj, Jan, Pribulla, Theodor, Torres, Pascal J., Stateva, Ivanka, Niemczura, Ewa, Skarka, Marek, Alicavus, Filiz Kahraman, Sekeras, Matej, van der Swaelmen, Mathieu, Vanko, Martin, Vanzi, Leonardo, Borisova, Ana, Helminiak, Krzysztof, Alicavus, Fahri, Dimitrov, Wojciech, Tokarek, Jakub
We report the discovery of two massive eccentric systems with BRITE data, tau Ori and tau Lib, showing heartbeat effects close to the periastron passage. tau Lib exhibits shallow eclipses that will soon vanish due to the apsidal motion in the system.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=r39c86a4b39b::96bd9f6f9c720d3352d6d0a61263704a
https://aperta.ulakbim.gov.tr/record/30099
https://aperta.ulakbim.gov.tr/record/30099
Autor:
Tsvetkova, Svetla, Petit, Pascal, Konstantinova-Antova, Renada, Aurière, Michel, Wade, Gregg A., Charbonnel, Corinne, Bogdanovski, Rumen, Borisova, Ana
Beta Ceti is a slowly rotating (v sin i = 3.5 kms−1) single giant. In our previous study (Tsvetkova et al. (2013)) we showed that it is in the core He-burning phase and we reconstructed two Zeeman Doppler imaging (ZDI) maps (using data from 2010 an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38ab22417926361b203199795a601bd8
Autor:
Borisova, Ana P.1, Konstantinova-Antova, Renada1,2, Aurière, Michel2, Petit, Pascal2, Charbonnel, Corinne2,3, Jardine, Moira, Spruit, Hendrik C.
Publikováno v:
Proceedings of the International Astronomical Union. Aug2013 Supplement, Vol. 9 Issue S302, p365-366. 2p.
Bayesian statistical methods of Gregory-Loredo and the Bretthorst generalization of the Lomb-Scargle periodogram have been applied for studying activity cycles of the early K-type subgiant star CF Oct. We have used a ~45 year long dataset derived fro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::ecb64095f4ce4ae2584d1a2595bac604
Autor:
Johnson, John Asher, Winn, Joshua N., Rampazzi, Francesca, Barbieri, Cesare, Mito, Hiroyuki, Tarusawa, Ken-ichi, Tsvetkov, Milcho, Borisova, Ana, Meusinger, Helmut
Publikováno v:
Astronomical Journal; Apr2005, Vol. 129 Issue 4, p1-1, 1p